Thyroxine concentrations in blood serum and pericardial fluid of metamorphosing tadpoles and of adult frogs

Thyroxine concentrations in blood serum and pericardial fluid of metamorphosing tadpoles and of adult frogs

Thyroxine (T 4) was measured by double antibody radioimmunoassay in blood serum and pericardial fluid of individual tadpoles and frogs of Rana catesbeiana. The pattern of change of mean T 4 values during tadpole growth and metamorphosis was similar in serum and pericardial fluid. In growing tadpoles...

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Veröffentlicht in:General and comparative endocrinology 1979-11, Vol.39 (3), p.343-349
Hauptverfasser: Mondou, Philip M., Kaltenbach, Jane C.
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Anura
Metamorphosis, Biological
Pericardial Effusion - metabolism
Radioimmunoassay
Rana catesbeiana
Thyroxine - blood
Thyroxine - metabolism
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Zusammenfassung:Thyroxine (T 4) was measured by double antibody radioimmunoassay in blood serum and pericardial fluid of individual tadpoles and frogs of Rana catesbeiana. The pattern of change of mean T 4 values during tadpole growth and metamorphosis was similar in serum and pericardial fluid. In growing tadpoles, stages V–XVIII, all T 4 concentrations were below the limit of detection (
ISSN:0016-6480
1095-6840
DOI:10.1016/0016-6480(79)90131-X